First occurrence of Quadrigyrus nickoli (Acanthocephala) in the ornamental fishHyphessobrycon eques

Autor: Rodrigo Yudi Fujimoto, Edilene Santos Almeida, Daniel Guerreiro Diniz, Jorge Costa Eiras, Mauricio Laterça Martins
Jazyk: English<br />Spanish; Castilian<br />Portuguese
Předmět:
Zdroj: Revista Brasileira de Parasitologia Veterinária, Vol 22, Iss 1, Pp 110-113
Druh dokumentu: article
ISSN: 1984-2961
DOI: 10.1590/S1984-29612013000100020
Popis: The objective of this work was to report the first seasonal occurrence of the acanthocephalan Quadrigyrus nickoliSchmidt & Hugghins, 1973(Quadrigyridae), in the “Mato Grosso”Hyphessobrycon eques (Characidae) (Steindachner, 1882), collected from the Chumucuí River, state of Pará, Brazil. The fish were collected between July 2006 (rainy season) and June 2007 (dry season) and were examined for parasites using pattern techniques. A total of 75 parasites were found in the stomach and intestine. Among 83 fish examined (50 in the dry season and 33 in the rainy season), 22 were parasitized by cystacanths of Q. nickoli. The importance of H. eques as a paratenic host for Q. nickoli is discussed. This is the first study on the biology of and infection by Q. nickoli occurring in the eastern Amazon region.
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